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Telescopic Position Sensor 

PROTECTED POSITION SENSOR - IP65,
MEASUREMENT RANGE UP TO 2000 mm,
OUTPUT: CURRENT, VOLTAGE OR RESISTIVE.
Click here to download  Datasheet

This position transducer will measure linear movement of a valve, actuator, damper, weir, penstock or any moving device and provide a current, voltage or resistive feedback signal proportional to position.

The transducer body is manufactured in stainless steel and PTFE and is totally enclosed, a breather valve copes with internal pressure changes.  Dessicant and a small internal heater can be incorporated.  End of travel limit switches can be provided.

The transmitter uses a potentiometer as the variable element. A coated steel cord, fixed within the telescopic shaft, operates the potentiometer with a constant force spring arrangement for cord tensioning.  Versions are available ranging up to 2000 mm, with either three wire resistive, two wire current (4-20mA) signal or 4 wire voltage (0-10 Volt, + supply voltage) output.

Standard Features

  • Robust stainless steel construction

  • Waterproof breather to compensate for internal pressure changes (in very harsh environments this can be piped out to clean atmosphere)

  • Low friction bearings and shaft seal.

  • Internal magnet (to energise optional external limit switches).

  • Four core flexible screened cable, length 2 metres.

  • Customer calibration facility for current and voltage versions.

  • 0.1% repeatability.

  • Can be mounted by clamps or between centres.

Options

  • Electrical cable entry location can be specified by customer at placement of order.

  • Electrical plug and socket can be supplied, plastic or metal clad, location to customer requirement.

  • Armoured cable for harsh environments.

  • Custom brackets and to suit client's application.

  • Non-standard pull lengths.

  • Integral 4-20 mA 2-wire transmitter, or 0-10 V 4-wire transmitter.

  • The transmitter versions have span and zero calibration adjustments built in.

  • The transmitter electronics are also available as a stand-alone device to bring the span and zero adjustments to a convenient location away from the linear displacement transducer, e.g. in a safe area.

  • Battery operated, hand held read out instrument.

  • Internal anti condensation heater

  • Magnetic travel limit switches mounted on the outer shaft.

Contact Information: e-mail to info@jkcontrols.co.uk, or telephone +44 1732 522353

Registered Address: JK Controls Ltd, The Barn, 65 High Street, East Malling, Kent, ME19 6AJ.  Reg. No. 3073964

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